The BBK 2012-2018 Focus ST Throttle Body is dyno proven to make gains in power output and will significantly improve throttle response. This first-of-its-kind throttle body is not simply a ported factory unit, but a completely new casting with a significantly larger inside diameter. The BBK Focus ST throttle body is a great upgrade at any stage of modification, from mild bolt-on street cars to large turbo race cars.
It’s pretty common knowledge that the easiest way to extract more power from your Focus ST's engine is to make it easier to get air in. By reducing intake restriction, the BBK 62mm Throttle Body makes it easier for the engine to draw in more air. The increase of air that results from this means more air in the combustion chamber, and therefore more power. Not only that, but it provides a significant improvement in throttle response and reduced turbo lag.